17670-86-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17670-86-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,6,7 and 0 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 17670-86:
(7*1)+(6*7)+(5*6)+(4*7)+(3*0)+(2*8)+(1*6)=129
129 % 10 = 9
So 17670-86-9 is a valid CAS Registry Number.